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Firewall / security appliance · 5506-X / 5508-X / 5516-X

ASA5516-FTD-K9

ASA 5500-X Series Firewalls — ASA 5516-X firewall

ENDING SOON
2 mo
until end of service life

Lifecycle position

now
availableend of saleservice
AvailableSep 2012
End of saleAug 2021
End of serviceAug 2026Cisco bulletin ↗
Last security firmwareASA Software 9.x

Options from here

Third-party maintenance

Covered past the OEM cutoff by an independent maintainer.

Pre-stock spares

Modules and units still circulate on the secondary market.

Schedule migration

Carrying production traffic? Set the replacement window now, not mid-outage.

Run to failure

Low-criticality role — document the risk, harden backups, retire on your terms.

Other SKUs in 5500-X Series Firewalls

ASA5506-K9ASA 5506-X firewall›ASA5508-K9ASA 5508-X firewall›ASA5512-K9ASA 5512-X firewall›ASA5515-K9ASA 5515-X firewall›ASA5525-K9ASA 5525-X firewall›ASA5545-K9ASA 5545-X firewall›ASA5555-K9ASA 5555-X firewall›

ASA5516-FTD-K9 — questions

Is the Cisco ASA5516-FTD-K9 still supported?

Yes, for now. Cisco's last date of support for ASA5516-FTD-K9 is Aug 2026, per the Cisco end-of-life bulletin.

When did the ASA5516-FTD-K9 reach end of sale?

ASA5516-FTD-K9 reached end of sale Aug 2021, per the Cisco end-of-life bulletin.

What is the last date of support (EOSL) for the ASA5516-FTD-K9?

Aug 2026, according to the Cisco end-of-life bulletin.

Can the ASA5516-FTD-K9 be maintained after Cisco support ends?

After the last date of support, ASA5516-FTD-K9 units can often be kept in production through third-party maintenance providers. Cisco no longer issues software fixes, TAC support, or hardware replacement for it.